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4. a) If an object that was once living died...
4. a) If an object that was once living died 35,500 years ago, what is the...
4. a) If an object that was once living died 35,500 years ago, what is the exact percentage of the 14C remaining in the sample? (For 14C:ty=5730 yrs b) How many half-lives must pass before the amount of radioactive material remaining is less than 1% of the original amount? c) What type of radioactive decay would you expect for 238U, and why?
4. a) If an object that was once living died 35,500 years ago, what is the...
4. a) If an object that was once living died 35,500 years ago, what is the exact percentage of the 14C remaining in the sample? (For 14C:ty= 5730 yrs b) How many half-lives must pass before the amount of radioactive material remaining is less than 1% of the original amount? c) What type of radioactive decay would you expect for 238U, and why?
4. a) If an object that was once living died 35,500 years ago, what is the...
4. a) If an object that was once living died 35,500 years ago, what is the exact percentage of the 14C remaining in the sample? (For 14C:t/= 5730 yrs b) How many half-lives must pass before the amount of radioactive material remaining is less than 1% of the original amount? c) What type of radioactive decay would you expect for 238 U, and why?
Lan contain viruses. Unless you need to edit, it's safer to stay in Protected View. Enable...
Lan contain viruses. Unless you need to edit, it's safer to stay in Protected View. Enable Editing 3. Write the equation for the nuclear reaction described in each of the following processes: a.Americium-241(241Am)undergoes alpha decay (inside a smoke detector) b.lodine-131 (131) undergoes normal beta decay (used in therapy for hyperthyroidism) C.Fluorine-18 (18F) undergoes positron emission (one of the radionuclides used in PET scans) 4. a) If an object that was once living died 35,500 years ago, what the exact percentage...
Carbon-14 is a radioactive nucleus with a half-life of 5760 years. Living matter exchanges carbon with...
Carbon-14 is a radioactive nucleus with a half-life of 5760 years. Living matter exchanges carbon with its surrounding so that a constant level of 14C is maintained, corresponding to 15.3 decay events per minute. Once living matter has died, carbon contained in the matter is not exchanged with the surroundings, and the amount of 14C that remains in the dead material decreases with time due to radioactive decay. Consider a piece of fossilized wood that demonstrates 2.4 14C decay events...
Review | Constants Periodic Table In the parts that follow, use the following abbreviations for time...
Review | Constants Periodic Table In the parts that follow, use the following abbreviations for time If a substance is radioactive, this means that the nucleus is unstable and will therefore decay by any number of processes (alpha decay, beta decay, etc.). The decay of radioactive elements follows first-order kinetics. Therefore, the rate of decay can be described by the same integrated rate equations and half-life equations that are used to describe the rate of first-order chemical reactions: Measure of...
please note that the answer is not 2.4*10^14. please show your work clearly thank you, i'll...
please note that the answer is not
2.4*10^14. please show your work clearly thank you, i'll upvote
6. The radioactive isotope (183 Ta) has a half-life of 5.11 days. A sample containing this isotope has an initial activity at (t = 0) of 4.50 x 108 Bq. Calculate the number of nuclei that will decay in the time interval between tı = 36.0 hours and t2 = 70.0 hours. x 2.4e14 nuclei
Please answer 2 3 and 4. thanks . 1. In this activity, we will be exploring...
Please answer 2 3 and 4. thanks .
1. In this activity, we will be exploring the relationship between the amount of a radioactive substance and the rate of decay. There are many forms of radioactive decay. For this activity we will be using beta (8) decay, when a neutron decays into an electron and proton, and gamma (7) decay, when an atom emits energy through a gamma photon. B- Decay y Decay High Energy+ Unstable Atom Neutron Low Energy+...
Carbon 14 is a radioactive isotope produced in the upper atmosphere by cosmic rays. It has...
Carbon 14 is a radioactive isotope produced in the upper atmosphere by cosmic rays. It has a half-life measured as 5730 : 40 years. Since plants and animals absorb carbon from the atmosphere, the percentage of carbon a living organism contains that is carbon 14 is equal to the percentage of carbon 14 in the atmosphere. When an organism dies, however (or when a layer of wood is laid down as bark in a tree), it ceases to absorb carbon....
Please show all work neatly! :) Thank you! Directions: Show all work, and answer each question...
Please show all work neatly!
:) Thank you!
Directions: Show all work, and answer each question that is asked. Explanations should be given in complete sentences. All graphs should be drawn accurately on this sheet, and be fully labeled. 1. Rylin drinks a cup of coffee every morming at 7:00 am. The amount of caffeine (in mg) in her body as a result of drinking this coffee is given by the function A(t) 130 where t is time in hours...
4. a) If an object that was once living died 35,500 years ago, what is the exact percentage of the 14C remaining in the sample? (For 14C:ty=5730 yrs b) How many half-lives must pass before the amount of radioactive material remaining is less than 1% of the original amount? c) What type of radioactive decay would you expect for 238U, and why?
4. a) If an object that was once living died 35,500 years ago, what is the exact percentage of the 14C remaining in the sample? (For 14C:ty= 5730 yrs b) How many half-lives must pass before the amount of radioactive material remaining is less than 1% of the original amount? c) What type of radioactive decay would you expect for 238U, and why?
4. a) If an object that was once living died 35,500 years ago, what is the exact percentage of the 14C remaining in the sample? (For 14C:t/= 5730 yrs b) How many half-lives must pass before the amount of radioactive material remaining is less than 1% of the original amount? c) What type of radioactive decay would you expect for 238 U, and why?
Lan contain viruses. Unless you need to edit, it's safer to stay in Protected View. Enable Editing 3. Write the equation for the nuclear reaction described in each of the following processes: a.Americium-241(241Am)undergoes alpha decay (inside a smoke detector) b.lodine-131 (131) undergoes normal beta decay (used in therapy for hyperthyroidism) C.Fluorine-18 (18F) undergoes positron emission (one of the radionuclides used in PET scans) 4. a) If an object that was once living died 35,500 years ago, what the exact percentage...
Review | Constants Periodic Table In the parts that follow, use the following abbreviations for time If a substance is radioactive, this means that the nucleus is unstable and will therefore decay by any number of processes (alpha decay, beta decay, etc.). The decay of radioactive elements follows first-order kinetics. Therefore, the rate of decay can be described by the same integrated rate equations and half-life equations that are used to describe the rate of first-order chemical reactions: Measure of...
please note that the answer is not
2.4*10^14. please show your work clearly thank you, i'll upvote
6. The radioactive isotope (183 Ta) has a half-life of 5.11 days. A sample containing this isotope has an initial activity at (t = 0) of 4.50 x 108 Bq. Calculate the number of nuclei that will decay in the time interval between tı = 36.0 hours and t2 = 70.0 hours. x 2.4e14 nuclei
Please answer 2 3 and 4. thanks .
1. In this activity, we will be exploring the relationship between the amount of a radioactive substance and the rate of decay. There are many forms of radioactive decay. For this activity we will be using beta (8) decay, when a neutron decays into an electron and proton, and gamma (7) decay, when an atom emits energy through a gamma photon. B- Decay y Decay High Energy+ Unstable Atom Neutron Low Energy+...
Carbon 14 is a radioactive isotope produced in the upper atmosphere by cosmic rays. It has a half-life measured as 5730 : 40 years. Since plants and animals absorb carbon from the atmosphere, the percentage of carbon a living organism contains that is carbon 14 is equal to the percentage of carbon 14 in the atmosphere. When an organism dies, however (or when a layer of wood is laid down as bark in a tree), it ceases to absorb carbon....
Please show all work neatly!
:) Thank you!
Directions: Show all work, and answer each question that is asked. Explanations should be given in complete sentences. All graphs should be drawn accurately on this sheet, and be fully labeled. 1. Rylin drinks a cup of coffee every morming at 7:00 am. The amount of caffeine (in mg) in her body as a result of drinking this coffee is given by the function A(t) 130 where t is time in hours...
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